Display screen or a portion thereof with graphical user interface



FIG. 1 is a front view of a display screen or portion thereof with graphical user interface showing my new design;

FIG. 2 is a front view thereof, but showing my new design in the context of differing broken-line subject matter;

FIG. 3 is a front view thereof, but showing my new design in the context of differing broken-line subject matter; and,

FIG. 4 is a front view thereof, but showing my new design in the context of differing broken-line subject matter.

The outermost broken-line perimeter illustrates a display screen or portion thereof and forms no part of the claimed design. The remaining broken lines illustrate portions of a graphical user interface and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or a portion thereof with graphical user interface, as shown and described. 